METHOD FOR CONSOLIDATING DEEP-MOUNTED SUPPORTING STRUCTURE Russian patent published in 2002 - IPC

FIELD: hydraulic engineering; erecting and repairing deep-mounted supporting structures. SUBSTANCE: method involves ground excavation in bore pits adjoining supporting structure; producing bearing members in vicinity of bore pits; filling bore pits with consolidating hardening mix; and joining bearing members to supporting structure. Bearing members are made in the form of cylindrical pipes with spiral winding on outer surface. Bearing members are produced by driving pipes into ground over spiral winding. Bearing members are joined to supporting structure by forming rectangular-trapezoidal prism on external side whose bases are placed in vertical plane, inclined face of prism is oriented to inner surface of supporting structure and inclined in same direction. Supporting structure is exposed to gripper effect at its joint with bearing members. In addition, gripper effect is provided by erecting floor-slab pre-stressed in direction of expansion, specific gain of gripper effect is , where P is specific gain of gripper effect, MPa; H is vertical thrust onto supporting structure, MPa. EFFECT: enhanced bearing capacity due to thrust transmit ion to underlying layers of ground. 2 cl, 2 dwg